Supplementary material

Description of roughness geometry in the microtube, meshing of geometries for numerical computation, derivation of the cross-section and perimeter of the tube for different roughness profiles, detailed results for local variation of axial velocity, solute concentration in the permeate, permeation flux, mass-transfer coefficient, solute mass flux with roughness parameters in the sinusoidal profile, average Sherwood number for different roughness profiles.本数据集包含以下内容：微管内粗糙几何结构的描述、数值计算所用几何网格的划分、不同粗糙轮廓下管截面与周长的推导；正弦轮廓下结合粗糙参数的轴向速度局部变化、渗透液溶质浓度、渗透通量、传质系数、溶质质量通量的详细结果；以及不同粗糙轮廓下的平均舍伍德数（Sherwood number）。